Indigofera Bancroftii NT Taxonomic Authority: Peter G.Wilson Global Assessment Regional Assessment Region: Global Endemic to Region
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Indigofera bancroftii NT Taxonomic Authority: Peter G.Wilson Global Assessment Regional Assessment Region: Global Endemic to region Upper Level Taxonomy Kingdom: PLANTAE Phylum: TRACHEOPHYTA Class: MAGNOLIOPSIDA Order: FABALES Family: LEGUMINOSAE Lower Level Taxonomy Rank: Infra- rank name: Plant Hybrid Subpopulation: Authority: General Information Distribution Indigofera bancroftii is endemic to Australia, distributed in the state of Queensland, restricted to drier areas of the North Kennedy and Cook districts. Range Size Elevation Biogeographic Realm Area of Occupancy: Upper limit: 1100 Afrotropical Extent of Occurrence: 32000 Lower limit: 260 Antarctic Map Status: Depth Australasian Upper limit: Neotropical Lower limit: Oceanian Depth Zones Palearctic Shallow photic Bathyl Hadal Indomalayan Photic Abyssal Nearctic Population There is no information of population size or dynamics. Latest collection in 2007. Total Population Size Minimum Population Size: Maximum Population Size: Habitat and Ecology Erect large shrub restricted to rocky hills in shallow soils in open eucalypt forest or woodland, associated with Eucalyptus crebra, E. cloeziana and E. dichromophloia (Wilson 1987). System Movement pattern Crop Wild Relative Terrestrial Freshwater Nomadic Congregatory/Dispersive Is the species a wild relative of a crop? Marine Migratory Altitudinally migrant Growth From Definition Shrub - large Perennial shrub (>1m), also termed a Phanerophyte (>1m) Threats There are no major threats known to this species, however the overall condition of Einasleigh uplands bioregion where this species occurs, is declining and significant intervention is required to prevent further loss of the biodiversity values of the area. Grazing pressure, changes in fire regime and exotic weeds are the major threatening processes. Broad scale tree clearing is threatening the Herberton Wairuna subregion, where this species has been found most often. The most common threatened vegetation types of the region are eucalypt woodlands with grassy and shrubby understorey with grazing pressure, followed closely by exotic weeds identified as the main threats. The condition of these ecosystems is declining (Australian Natural Resources Atlas 2009). Past Present Future 1 Habitat Loss/Degradation (human induced) 1.1 Agriculture 1.1.4 Livestock 1.5 Invasive alien species (directly impacting habitat) 1.7 Fires 7 Natural disasters 7.4 Wildfire 10 Human disturbance 10.5 Fire Conservation Measures This species is known to occur within the Tinaroo Forestry Reseve. Only 2.42% of the total area of the Einasleigh Uplands is under reserve tenure. These reserves include 35% of regional ecosystems present in the bioregion, and incorporate 16 of the 24 threatened ecosystems. Most of the localities where this species is known from are not within protected areas, and grassy and shrubby eucalypt woodlands including riparian areas require conservation action through habitat protection on private lands and reserves. Grazing pressure needs to be controlled and in places removed through fencing and feral animal control (Australian Natural Resources Atlas 2009). This species is not listed as Threatened in the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act). It is recommended that the seeds of this species are banked as an ex situ conservation measure. In Place Needed 1 Policy-based actions 1.1 Management plans 1.1.1 Development 1.1.2 Implementation 4 Habitat and site-based actions 4.4 Protected areas 4.4.1 Identification of new protected areas 5 Species-based actions 5.7 Ex situ conservation actions 5.7.2 Genome resource bank Countries of Occurrence PRESENCE ORIGIN Year Breeding Non- Passage Possibly ExtinctPresence Native Introduced Re- Vagrant Origin Round Season breeding migrant extinct uncertain Introduced uncertain only season only Australia Queensland General Habitats Score Description Major Importance 2 Savanna 1UnsetSuitable 2.1 Savanna - Dry1Unset Suitable 3 Shrubland 1UnsetSuitable 3.8 Shrubland - Mediterranean-type Shrubby Vegetation1Unset Suitable Species Utilisation Species is not utilised at all Trend in the level of wild offtake/harvest in relation to total wild population numbers over the last five years: Trend in the amount of offtake/harvest produced through domestication/cultivation over the last five years: CITES status: Not listed IUCN Red Listing Red List Assessment:(using 2001 IUCN system) Near Threatened (NT) Red List Criteria: Date Last Seen (only for EX, EW or Possibly EX species): Is the species Possibly Extinct? Possibly Extinct Candidate? Rationale for the Red List Assessment I. bancroftii is listed as Near Threatened in view of its fairly restricted distribution in eucalypt forest or woodland of the Einasleigh Uplands in Queensland (EOO ~32,000 km2). The species does not appear to be well protected (it is only known to occur within one small forest reserve) and the overall condition of the area is declining mainly due to grazing pressure, changes in fire regimes, broad scale tree clearing and exotic weeds. Despite the fact that it is not listed as Threatened under the EPBC Act, it is recommended that the new protected areas are identified, grazing pressure minimised and that the seeds of this species are banked as an ex situ conservation measure. Reason(s) for Change in Red List Category from the Previous Assessment: Genuine Change Nongenuine Change No Change Genuine (recent) New information Taxonomy Same category Genuine (since first assessment) Knowledge of Criteria Criteria Revisio and criteria Incorrect data used Other Same category but previously change in criteria Current Population Trend: Unknown Date of Assessment: 18/08/2010 Name(s) of the Assessor(s): Malcolm, P. Evaluator(s): Notes: % population decline in the past: Time period over which the past decline has been measured for applying Criterion A or C1 (in years or generations): % population decline in the future: Time period over which the future decline has been measured for applying Criterion A or C1 (in years or generations): Number of Locations: Severely Fragmented: Number of Mature Individuals: Bibliography Australian Natural Resources Atlas, 2009, Biodiversity Assessment - Einasleigh Uplands18 August 2010, , , Commonwealth of Australia, 1999, Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act)10 June 2010, , , Wilson, P.G., 1987, Taxonomic Notes on some Australian Species of Indigofera (Fabaceae - Faboideae), Journal of the Adelaide Botanic Gardens1, 119-126, , .